Hose-coupling.



y PATENTED FEB. 14, 1905.

H000 00UPL1NG.

APPLIOTION FILED APE. 2, 1904.

UNITED STATES Patented February V14, 1905.

SHADRACK W. GOOCH, OF BRILLIANT, OHlO.

HosE-ooUPLlNe.

SPECIFICATION forming part of Letters Patent No. 782,555, dated February 14, 1905. Application filed April Z, 1904. Serial No. 201,297.

by reason of the ease with which the connec-x tion may be made and the equal ease with which the sections may be uncoupled. The device is therefore especially adapted for usewith fire-engine hose, in mines, and in connecting sections of hose conveying compressed air to pneumatlc drills and other tools.

My invention consists of the novel features of construction hereinafter described, .particularly pointed out in the-claims, and shown in the accompanying drawings, in which- Figure l is a perspective View of my coupling', the two coacting parts being shown detached. Fig. 2 is a longitudinal section through the coupler, the two coacting members being coupled together. Fig. 3 is a section on the line 3 3 of Fig. 2. Y Fig. 4 is a detail View partly in section and showing the spring-actuated dog' in elevation. Fig. 5 is a detail plan view showing the dog.

My coupler is formed of two cylindrical sections A and A, the former being adapted to be telescoped by the latter. lOn the inner face of the section A is formed, arranged in a ring-y like form, a plurality of lugs or inwardly-extending projections B, spaced apart. The rear edges of these lugs are arranged at an angle to a true circumferential line drawn around the cylinder A and may for convenience be termed beveled On the exterior of the section A', which is of less diameter than the bore of the section A, is formed projections or lugs B', having their rear edges beveled or angled in the 4opposite direction to the angle of inclination in the lugs B. The lugs B' are also spaced apart in the same manner as are the lugs B. At its forward end the cylinder A is beveled, and on the edge of the bevel ratchet-teeth C are formed, as is Vmost clearly shown in Figs. l and 5. l w

A shoulder C is formed on the cylindrical section A, and the forward face of the shoulder C is beveled to coact with the beveled free end of the section A, the portion of the section Al in advance of the shoulder C telescoping into the section A. On opposite sides of the section A' and immediately to the rear of the shoulderC are formed longitudinally-ex# tending grooves D, and the shoulder C is also recessed-to communicate with these grooves, Vthe grooves and the recesses'of the shoulders ward and inward movement, a ring F is fitted over the coupling-section A and bears against the rear edge ofthe shoulder C and also covers the grooves D.

It is thought that the operation of the devicewill be obvious. The section A' is inserted into the section A, the lugs B passing 'between the lugs B untily they rest in the rear of the said lugs B, bywhich time the shoulder C will be in contact with the beveled face of the section A, having the teeth C, which teeth are slightly above the shoulder, owing to the fact that the exterior diameter of the forward end of the section A is slightly greater than the exterior diameter of the shoulder C. g The parts being in the position described, the section A. is rotated right-handedly with Areference to the section A, and the inclined orangled faces of the lugs B and B are brought into engagement and the Section A is lheld firmly from withdrawal, and the opposite angling of the lugs B and B' give a wedge-like effect, making a very tight joint,l so that the teeth C are held in firm engagement with the dogs E', the said dogs preventingreverse rotation of the section A.- To uncouple the sections, it is only necessary to press the dogs inwardly, and the dogs sinking into the recess IOO are disengaged from the teeth C. A slight turn to the left then disengages the angled faces of the lugs B B', and the section A' can be at once withdrawn from the section A.

Having thus fully described my invention,A what I claim as new, and desire to secure by Letters Patent, is-

l. A sectional coupling having telescopic sections carrying interlocking lugs, one of the said sections having a beveled end, ratchetteeth formed on the edge of said bevel, a shoulder formed on the coacting section and beveled to fit the beveled end carrying the teeth, said shoulder being recessed, a dog adapted to workin said recess and engage the ratchet-` teeth, and a spring adapted to actuate the dog.

2. A coupling comprising a section having lugs formed on its inner face, one end or' the said section being beveled, ratchet teeth formed on the said beveled end, a section adapted to slide within the first-mentioned section and having lugs Jformed on its exterior, the said lugs being adapted to pass between the lugs carried by the first-mentioned section, a shoulder on the second-mentioned section adapted to engage the beveled end of the lirst-mcntioned section, grooves formed in the rear of the said shoulder, springs in the grooves, the said grooves opening' into recesses l formed in the shoulder, and dogs adapted to move in the recesses of the shoulder and engage the teeth of the first-mentioned section, the springs bearing on the s'aid dogs, as and for the. purpose set forth.

3. A coupling of the kind described comprising pipe-coupling sections A and A', the section A' being adapted to have a limited movement within the-section A, lugs spaced apart carried by the interior face of the section A, lugs spaced apart carried by the exterior face ot' the section A' and adapted to pass between the lugs of the section A, an annular ring of serrated teeth carried by the section A, a recessed shoulder carried by the section A', the section A' being grooved in the rear of the recesses of the shoulder, the forward ends of the grooves communicating with the recesses, springs in the grooves, dogs carried by the springs and adapted to project above the shoulder, said dogs working in the recesses of the shoulder,and adapted to engage the teeth of the section A, and a ring adapted to fit over the section A' in the rear of the shoulder and cover the grooves, as and for the purpose specified.

SHADRAGK W. GOOCH.

Vitnesses: I

-Jnssrn GoocH, CALVIN CRooKs. 

